I've had my hd 7990 for awhile, and it seems like i've been having low fps on any high end games or mmorpg games. Thief, BF4, Crysis, Assassin Creed. some times it'll just drop to 10 ~ 20 fps. My CPU's Intel Core i7-3820, i've kind of gotten sick of AMD's drivers. If i couldn't fix the problem I'm switching to Nvidia.